Update on datagrid not updating
You can prevent a concurrency violation by filling another dataset with the updated records from the data source and then performing a merge to prevent a concurrency violation.(A concurrency violation occurs when another user modifies a record in the data source after the dataset has been filled.)To make changes to an existing data row, add or update data in the individual columns.When merging datasets, you can pass a Boolean argument () that tells the Merge method whether to retain existing modifications in the target dataset.Because datasets maintain multiple versions of records, it's important to keep in mind that more than one version of the records is being merged.Two-stage update process and the role of the Data Row Version in a successful update A dataset contains collections of tables, which contain a collections of rows.If you intend to update an underlying data source later, you must use the methods on the Data Table.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.
i've a problem updating my datagrid when clicking the button by using Notify Property Changed. Items Source in code behind, but it doesn't if i set it in xaml.Whenever I change the quantity, it should update the total price with the sum of the items' prices when I leave the cell to another cell on the row, but it doesn't happen, the source is updated only when I go to another row not another cell in the same row.See the Remarks here for a reference Let me say also, keeping all that vars around is not a good practice.Text is not HTML encoded before it is displayed in the Data Grid control.This makes it possible to embed script within HTML tags in the text.
If you call the Remove At collection on the Rows property, the deletion won't be communicated back to the database. When you merge datasets, new records in the source dataset are added to the target dataset.